RazCoreth, Nightmare Wyrm

-3: Search your library for two lands, put one onto the battlefield the other into your hand. If you control ten or more lands untap four forests
+2: Create a 1/2 green and black Nightmare creature token with "when this creature attacks, each player exiles the top two cards of their library"
-7: You may cast up to four face-up cards in exile that a player owns from exile without paying for their mana costs.